MURPHY-STOP-THAT is my name. I am a terrier. I bark. I bark at anything and everything and all the time. On a farm filled with delicious kitchen smells and dumb farm animals and unexplained noises, there's always something to keep a dog busy -- and often in trouble. From his morning rush to the house for breakfast to his final rounds before curling up in his comfortable bed in the barn at night, Murphy is the sort of irrepressible but lovable dog that only Alice Provensen, with her trademark affection for even misbehaving animals, could portray.